sysdeps/s390/s390-32/initfini.c

   1 /* Special .init and .fini section support for S/390.
   2    Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 /* This file is compiled into assembly code which is then munged by a sed
  21    script into two files: crti.s and crtn.s.
  22
  23    * crti.s puts a function prologue at the beginning of the
  24    .init and .fini sections and defines global symbols for
  25    those addresses, so they can be called as functions.
  26
  27    * crtn.s puts the corresponding function epilogues
  28    in the .init and .fini sections. */
  29
  30 __asm__ ("\
  31 \n\
  32 #include \"defs.h\"\n\
  33 \n\
  34 /*@HEADER_ENDS*/\n\
  35 \n\
  36 /*@TESTS_BEGIN*/\n\
  37 \n\
  38 /*@TESTS_END*/\n\
  39 \n\
  40 /*@_init_PROLOG_BEGINS*/\n\
  41 \n\
  42         .section .init\n\
  43 #NO_APP\n\
  44         .align 4\n\
  45 .globl _init\n\
  46         .type    _init,@function\n\
  47 _init:\n\
  48 #       leaf function           0\n\
  49 #       automatics              0\n\
  50 #       outgoing args           0\n\
  51 #       need frame pointer      0\n\
  52 #       call alloca             0\n\
  53 #       has varargs             0\n\
  54 #       incoming args (stack)   0\n\
  55 #       function length         36\n\
  56         STM     6,15,24(15)\n\
  57         BRAS    13,.LTN1_0\n\
  58 .LT1_0:\n\
  59 .LC14:\n\
  60         .long   __gmon_start__@GOT\n\
  61 .LC15:\n\
  62         .long   _GLOBAL_OFFSET_TABLE_-.LT1_0\n\
  63 .LTN1_0:\n\
  64         LR      1,15\n\
  65         AHI     15,-96\n\
  66         ST      1,0(15)\n\
  67         L       12,.LC15-.LT1_0(13)\n\
  68         AR      12,13\n\
  69         L     1,.LC14-.LT1_0(13)\n\
  70         L     1,0(1,12)\n\
  71         LTR   1,1\n\
  72         JE    .L22\n\
  73         BASR  14,1\n\
  74 .L22:\n\
  75 #APP\n\
  76         .align 4,0x07\n\
  77         END_INIT\n\
  78 \n\
  79 /*@_init_PROLOG_ENDS*/\n\
  80 \n\
  81 /*@_init_EPILOG_BEGINS*/\n\
  82         .align 4\n\
  83         .section .init\n\
  84 #NO_APP\n\
  85         .align 4\n\
  86         L       4,152(15)\n\
  87         LM      6,15,120(15)\n\
  88         BR      4\n\
  89 #APP\n\
  90         END_INIT\n\
  91 \n\
  92 /*@_init_EPILOG_ENDS*/\n\
  93 \n\
  94 /*@_fini_PROLOG_BEGINS*/\n\
  95         .section .fini\n\
  96 #NO_APP\n\
  97         .align 4\n\
  98 .globl _fini\n\
  99         .type    _fini,@function\n\
 100 _fini:\n\
 101 #       leaf function           0\n\
 102 #       automatics              0\n\
 103 #       outgoing args           0\n\
 104 #       need frame pointer      0\n\
 105 #       call alloca             0\n\
 106 #       has varargs             0\n\
 107 #       incoming args (stack)   0\n\
 108 #       function length         30\n\
 109         STM     6,15,24(15)\n\
 110         BRAS    13,.LTN2_0\n\
 111 .LT2_0:\n\
 112 .LC17:\n\
 113         .long   _GLOBAL_OFFSET_TABLE_-.LT2_0\n\
 114 .LTN2_0:\n\
 115         LR      1,15\n\
 116         AHI     15,-96\n\
 117         ST      1,0(15)\n\
 118         L       12,.LC17-.LT2_0(13)\n\
 119         AR      12,13\n\
 120 #APP\n\
 121         .align 4,0x07\n\
 122         END_FINI\n\
 123 \n\
 124 /*@_fini_PROLOG_ENDS*/\n\
 125 \n\
 126 /*@_fini_EPILOG_BEGINS*/\n\
 127         .align 4\n\
 128         .section .fini\n\
 129 #NO_APP\n\
 130         .align 4\n\
 131         L       4,152(15)\n\
 132         LM      6,15,120(15)\n\
 133         BR      4\n\
 134 #APP\n\
 135         END_FINI\n\
 136 \n\
 137 /*@_fini_EPILOG_ENDS*/\n\
 138 \n\
 139 /*@TRAILER_BEGINS*/\
 140 ");